Cementitious Underlayments for Commercial & Residential Flooring
Build on a Flawless Foundation
Whether you’re installing new floors in a multi-family high-rise, commercial space, or residential home, a level and sound subfloor is essential. ATR installs cementitious base underlayments to correct uneven slabs and create the ideal surface for tile, wood, vinyl, and other finish flooring types.
Using pumpable or hand-mixed self-leveling cement-based materials, we deliver fast, clean, and code-compliant pours that meet the demands of both residential and commercial flooring systems.
Ideal For:
New home construction
Apartment buildings & condos
Office spaces & retail stores
Remodels & renovations of commercial & residential
Uneven or damaged wood & concrete slabs
Why Choose ATR for Underlayment?
20+ years of experience in commercial and residential
Clean, professional application with fast turnaround
Compatible with moisture barriers and radiant heat
Surface prep included in all full-service installs
Trusted by contractors, builders, and homeowners
Our Cementitious Underlayment Process
We begin with a comprehensive site evaluation and moisture testing to determine whether underlayment is necessary and to identify any potential issues before flooring installation begins.
Next, we perform surface preparation, which may include mechanical grinding, thorough cleaning, and the application of primer to ensure a strong and lasting bond between the substrate and the underlayment material.
Once the surface is ready, our team proceeds with the cementitious pour. We apply a self-leveling compound designed to fill low spots, correct slope irregularities, and establish a smooth, even surface for the finish flooring.
While drying times can vary based on site conditions, most floors are walkable within a few hours and ready for finish flooring installation within 24 hours.
Products & Systems We Use:
We install trusted underlayment systems, including ARDEX, MAPEI, SCHÖNOX, and USG Levelrock, ensuring compatibility and code compliance across a wide range of flooring types and building specs.
We provide complete flooring solutions — from material sourcing and surface preparation to gypsum underlayment and expert installation. With one point of contact for your entire project, ATR is the only commercial flooring company in the U.S. offering true turnkey flooring packages.
Quality Craftsmanship. Unmatched Service. Trusted Results.